CN220821827U - Battery, battery pack and power equipment - Google Patents
Battery, battery pack and power equipment Download PDFInfo
- Publication number
- CN220821827U CN220821827U CN202322479509.6U CN202322479509U CN220821827U CN 220821827 U CN220821827 U CN 220821827U CN 202322479509 U CN202322479509 U CN 202322479509U CN 220821827 U CN220821827 U CN 220821827U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- battery
- accommodating cavity
- explosion
- proof valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004880 explosion Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims 1
- 238000003475 lamination Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a battery, a battery pack and power equipment, wherein the battery comprises: the shell is internally provided with a pole piece accommodating cavity, and an explosion-proof valve communicated with the pole piece accommodating cavity is formed on the shell; the pole piece is accommodated in the pole piece accommodating cavity, a guide gap is formed between at least part of the edge of the pole piece and the inner wall of the pole piece accommodating cavity, and at least part of the edge of the pole piece is obliquely arranged towards the inner wall far away from the pole piece accommodating cavity in the direction close to the explosion-proof valve. According to the battery disclosed by the utility model, at least part of the edges of the pole pieces incline in the direction of approaching the explosion-proof valve towards the direction of being far away from the inner wall of the pole piece accommodating cavity, so that a guide gap is formed between the pole pieces and the inner wall of the pole piece accommodating cavity, gas generated when the battery is in thermal runaway can be gathered at the guide gap, the gathered gas is easier to break the explosion-proof valve, pressure relief occurs, the intensity of thermal runaway in the battery is reduced, and the safety and reliability of the battery are improved when the battery is operated.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery, a battery pack and power equipment.
Background
In the related art, the demand of people for clean energy is stronger, and the lithium ion battery is widely applied as a good carrier of electric energy. The lithium ion battery electrode commonly used at present is generally constructed as coiling type or lamination type, and traditional lamination type battery pole piece is right angle all around, and battery inner space is less, and the gas that produces when the inside thermal runaway that takes place of lamination type battery can't discharge in time, and the heat that the reaction produced also can't discharge, and the battery can have the danger of explosion.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a battery. According to the battery disclosed by the utility model, at least part of the edges of the pole pieces incline in the direction of approaching the explosion-proof valve towards the direction of being far away from the inner wall of the pole piece accommodating cavity, so that a guide gap is formed between the pole pieces and the inner wall of the pole piece accommodating cavity, gas generated when the battery is in thermal runaway can be gathered at the guide gap, the gathered gas is easier to break the explosion-proof valve, pressure relief occurs, the intensity of thermal runaway in the battery is reduced, and the safety and reliability of the battery are improved when the battery is operated.
The utility model also provides a battery pack with the battery.
The utility model also provides power equipment with the battery pack.
The battery according to the present utility model includes: the pole piece accommodating cavity is formed in the shell, and an explosion-proof valve communicated with the pole piece accommodating cavity is formed on the shell; the pole piece is accommodated in the pole piece accommodating cavity, and a guide gap is formed between at least part of the edge of the pole piece and the inner wall of the pole piece accommodating cavity, wherein the guide gap is formed between the edge of the pole piece and the inner wall of the pole piece accommodating cavity; at least part of the edge of the pole piece is obliquely arranged towards the inner wall far from the pole piece accommodating cavity in the direction approaching the explosion-proof valve.
According to the battery, the explosion-proof valve is formed on the periphery of the shell, the pole piece is arranged in the shell, at least part of the edge of the pole piece is obliquely arranged towards the inner wall far from the pole piece accommodating cavity in the direction close to the explosion-proof valve, and the guide gap is formed between the pole piece and the inner wall of the accommodating cavity, so that the exhaust space in the battery is increased, gas generated when the thermal runaway in the battery occurs in the guide gap, the pressure in the guide gap is increased, the explosion-proof valve is more easily broken, the gas and redundant heat generated in the battery are released, the intensity of the thermal runaway in the battery is reduced, the occurrence of explosion accidents of the battery is effectively prevented, and the safety and reliability of the battery are improved.
According to some embodiments of the utility model, the explosion-proof valve is disposed at least one end of the housing in the length direction, and the guide gap is formed between at least one side edge of the pole piece in the height direction and the inner wall of the pole piece accommodating cavity.
According to some embodiments of the utility model, the projection of the explosion proof valve and the guide gap at least partially overlaps in the battery length direction.
According to some embodiments of the utility model, the height of one end of the pole piece is H1, the height of the other end of the pole piece is H2, and the following is satisfied: (H1-H2)/H1 is less than or equal to 1/5.
According to some embodiments of the utility model, H1-H2 is 6mm.
According to some embodiments of the utility model, the pole piece is configured as a plurality of pole pieces arranged in a stack in the thickness direction.
According to some embodiments of the utility model, the plurality of pole pieces include a positive pole piece and a negative pole piece, each positive pole piece is disposed between two adjacent negative pole pieces, one end of the positive pole piece in the length direction is provided with a positive pole tab, and the other end of the negative pole piece in the length direction is provided with a negative pole tab.
According to some embodiments of the utility model, a first inclined edge is formed on one side of the positive electrode plate in the length direction, and the guide gap is formed between the first inclined edge and the inner wall of the electrode plate accommodating cavity; a second inclined edge is formed on one side of the negative pole piece in the length direction, and the guide gap is formed between the second inclined edge and the inner wall of the pole piece accommodating cavity; wherein the first inclined edge and the second inclined edge are inclined in the same direction.
The battery pack according to the present utility model is briefly described as follows.
The battery pack according to the utility model is provided with the battery according to any one of the embodiments, and since the battery pack according to the utility model is provided with the battery according to any one of the embodiments, the battery inside provided in the battery pack has a good exhaust space, gas generated when thermal runaway occurs in the battery can be immediately exhausted, and the gas is exhausted while taking away the surplus heat generated in the battery, thereby reducing the risk of explosion of the battery and improving the safety and reliability of the battery pack during operation.
The power plant according to the utility model is briefly described below.
The power equipment according to the utility model is provided with the battery pack according to any one of the above embodiments, and the power equipment according to the utility model is good in safety and high in reliability because the power equipment according to the utility model is provided with the battery pack according to any one of the above embodiments.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a structure of a battery according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the structure of a pole piece according to one embodiment of the utility model;
Fig. 3 is a schematic illustration of a positive and negative electrode sheet stack according to one embodiment of the utility model.
Reference numerals:
A battery 1;
A pole piece 2;
positive electrode tab 11, positive electrode tab 111, first inclined edge 112;
A negative pole piece 12, a negative pole tab 121, a second inclined edge 122;
a housing 13, an explosion-proof valve 14, a guide gap 101.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the related art, the demand of people for clean energy is stronger, and the lithium ion battery is widely applied as a good carrier of electric energy. The lithium ion battery electrode commonly used at present is generally constructed as coiling type or lamination type, and traditional lamination type battery pole piece is right angle all around, and battery inner space is less, and the gas that produces when the inside thermal runaway that takes place of lamination type battery can't discharge in time, and the heat that the reaction produced also can't discharge, and the battery can have the danger of explosion.
A battery according to an embodiment of the present utility model is described below with reference to fig. 1 to 3.
The battery 1 according to the present utility model includes: the pole piece comprises a shell 13 and a pole piece 2, wherein a pole piece accommodating cavity is formed in the shell 13, and an explosion-proof valve 14 communicated with the accommodating cavity is formed on the shell 13; the pole piece 2 is accommodated in the pole piece accommodating cavity, and a guide gap 101 is formed between at least part of the edge of the pole piece 2 and the inner wall of the pole piece accommodating cavity, wherein the at least part of the edge of the pole piece 2 is obliquely arranged towards the inner wall far away from the pole piece accommodating cavity in the direction approaching the explosion-proof valve 14.
In some specific embodiments, the battery 1 mainly comprises a shell 13 and a pole piece 2, a pole piece accommodating cavity for accommodating the pole piece 2 is formed in the shell 13, the shell 13 can effectively prevent the damage to the pole piece 2 caused by the external environment, an explosion-proof valve 14 is further arranged on the periphery of the shell 13, the explosion-proof valve 14 is communicated with the pole piece accommodating cavity, and when the internal pressure of the battery 1 exceeds a safety range, the explosion-proof valve 14 can be automatically opened to release excessive gas or pressure in the battery 1; the pole piece 2 sets up in the pole piece holds the intracavity, the one side edge that pole piece 2 is close to explosion-proof valve 14 on the width direction is towards keeping away from the pole piece and holds the direction slope setting of intracavity wall, and be formed with direction clearance 101 between pole piece 2 and the intracavity wall that holds, thereby increase the inside exhaust space of battery 1, the gas that produces when the inside thermal runaway of battery 1 can gather in direction clearance 101, the pressure increase of direction clearance 101 department, make explosion-proof valve 14 more easily be broken, release the inside gas and the unnecessary heat that produce of battery 1, reduce the inside thermal runaway's of battery 1 intensity, effectively prevent the emergence of battery 1 explosion accident, the security and the reliability of battery 1 have been improved.
According to the battery 1 disclosed by the utility model, the explosion-proof valve 14 is formed on the periphery of the shell 13, the pole piece is arranged in the shell 13, at least part of the edge of the pole piece is obliquely arranged towards the inner wall far away from the pole piece accommodating cavity in the direction close to the explosion-proof valve 14, and the guide gap 101 is formed between the pole piece and the inner wall of the accommodating cavity, so that the exhaust space in the battery 1 is enlarged, when the internal part of the battery 1 is in thermal runaway, the generated gas can be accumulated in the guide gap 101, the pressure at the guide gap 101 is increased, so that the explosion-proof valve 14 is easier to break, the gas and the redundant heat generated in the battery 1 are released, the intensity of the thermal runaway in the battery 1 is reduced, the explosion accident of the battery 1 is effectively prevented, and the safety and the reliability of the battery 1 are improved.
According to some embodiments of the present utility model, the explosion-proof valve 14 is disposed at least one end of the housing 13 in the length direction, and a guide gap 101 is formed between at least one side edge of the pole piece in the height direction and the inner wall of the receiving chamber.
In some embodiments, the explosion-proof valve 14 may be disposed at any one end of the housing 13 in the length direction, and the explosion-proof valve 14 may also be disposed at both ends of the housing 13 in the length direction, when the explosion-proof valve 14 is disposed at any one end of the housing 13 in the length direction, a side edge of the pole piece 2 adjacent to the explosion-proof valve 14 in the height direction is lower than the other side edge of the pole piece 2 in the height direction, the side edge of the pole piece 2 in the length direction is inclined toward an inner wall far from the pole piece accommodating cavity in the direction near the explosion-proof valve 14 and forms a guiding gap 101, and the guiding gap 101 is gradually narrowed in the direction far from the explosion-proof valve 14, and when thermal runaway occurs inside the battery 1, gas generated in the guiding gap 101 may be accumulated in the guiding gap 101, and because the guiding gap 101 is gradually widened in the direction near the explosion-proof valve 14, the gas flow is gradually increased in the direction near the explosion-proof valve 14, so that the explosion-proof valve 14 is more easily broken, the gas and the heat generated inside the battery 1 are released, the intensity of thermal runaway inside the battery 1 is effectively prevented, the occurrence of an accident of the battery 1 is effectively, and the safety and reliability of the battery 1 are improved. When the explosion-proof valve 14 is arranged at two ends of the shell 13 in the length direction, the edges of the two sides of the pole piece 2 in the length direction are inclined towards the inner wall far away from the pole piece accommodating cavity in the direction close to the explosion-proof valve 14 and form a guide gap 101, the guide gaps 101 at the two sides are gradually narrowed in the direction far away from the explosion-proof valve 14, and when the internal part of the battery 1 is in thermal runaway, generated gas can be gathered in the guide gap 101, and because the guide gap 101 is gradually widened in the direction close to the explosion-proof valve 14, the gas flow is gradually increased in the direction close to the explosion-proof valve 14, so that the explosion-proof valve 14 is more easily broken, the gas and redundant heat generated in the battery 1 are released, the intensity of the internal thermal runaway of the battery 1 is reduced, the explosion accident of the battery 1 is effectively prevented, and the safety and reliability of the battery 1 are improved.
According to some embodiments of the present utility model, the projections of the explosion-proof valve 14 and the guide gap 101 at least partially overlap in the longitudinal direction of the battery 1, and when thermal runaway occurs in the battery 1, the generated gas may be accumulated in the guide gap 101, and since the projections of the guide gap 101 and the explosion-proof valve 14 at least partially overlap in the longitudinal direction of the battery 1, the gas flow accumulated in the guide gap 101 may flow toward the explosion-proof valve 14, and the gas flow gradually increases in the direction close to the explosion-proof valve 14, so that the gas pressure at the explosion-proof valve 14 gradually increases, and the explosion-proof valve 14 is more easily broken, thereby releasing the gas and heat from the inside of the battery 1, reducing the severity of thermal runaway in the battery 1, effectively preventing the explosion accident of the battery 1, and improving the safety and reliability of the battery 1.
According to some embodiments of the utility model, the height of one end of the pole piece 2 is H1, the height of the other end of the pole piece 2 is H2, and the following are satisfied: (H1-H2)/H1 is less than or equal to 1/5.
In some embodiments, the height of one end of the pole piece 2 is set to H1, the height of the other end of the pole piece 2 is set to H2, and the conditions between H1 and H2 are satisfied: the relation of (H1-H2)/H1 is less than or equal to 1/5, so that the energy borne by the pole piece 2 can meet the design requirement of the battery 1 under the condition of ensuring higher energy density in the battery 1, the endurance mileage of the battery 1 is improved, the exhaust space in the battery 1 can be increased, gas generated when thermal runaway occurs in the battery 1 can be immediately exhausted, the risk of explosion of the battery 1 is reduced, and the stability and safety of the battery 1 in operation are maintained.
According to some embodiments of the utility model, H1-H2 is 2mm.
In some specific embodiments, the height of one end of the pole piece 2 is set to be H1, the height of the other end of the pole piece 2 is set to be H2, the height of the heat conduction gap is H1-H2, and the H1-H2 is set in the range that H1-H2 is less than or equal to 2mm, so that the energy borne by the pole piece 2 can meet the design requirement of the battery 1 under the condition that the internal energy density of the battery 1 is not reduced, the internal exhaust space of the battery 1 can be increased, and the stability and safety of the battery 1 in operation are maintained.
According to some embodiments of the present utility model, the pole piece 2 is configured as a plurality of stacked arrangement in the thickness direction.
In some specific embodiments, the pole pieces are configured to be multiple, the multiple pole pieces are arranged in the battery 1 to prevent single-point faults, each pole piece can independently work, when a certain pole piece breaks down, other pole pieces can continue to normally run, continuity and stability of the pole group during running are guaranteed, users are not influenced, the multiple pole pieces are stacked in the thickness direction of the battery 1, the thicknesses of all parts of the pole group are correspondingly consistent, the pole group is not easy to deform, meanwhile, the energy density inside the battery 1 is improved, and the endurance mileage of the battery 1 is improved.
According to some embodiments of the present utility model, the plurality of pole pieces includes positive pole pieces 11 and negative pole pieces 12, each positive pole piece 11 is disposed between two adjacent negative pole pieces 12, one end of the positive pole piece 11 in the length direction is provided with a positive pole tab 111, and the other end of the negative pole piece 12 in the length direction is provided with a negative pole tab 121.
In some embodiments, the electrode group is formed by stacking a plurality of electrode plates 2, wherein the plurality of electrode plates 2 are formed by a plurality of positive electrode plates and a plurality of negative electrode plates, each negative electrode plate is arranged between two adjacent positive electrode plates, a negative electrode tab 121 is arranged on one side of the negative electrode plate 12 in the length direction of the battery 1, a positive electrode tab 111 is arranged on the other side of the positive electrode plate 11 in the length direction of the battery 1, the positive electrode tab 111 and the negative electrode tab 121 are arranged in parallel in the length direction of the battery 1, on one hand, contact is not easy to occur between the positive electrode tab 111 and the negative electrode tab 121, so that short circuit between the positive electrode tab 111 and the negative electrode tab 121 is avoided, safety of the battery 1 is improved, on the other hand, the parallel arrangement of the positive electrode tab 111 and the negative electrode tab 121 can provide double connection, so that reliability of connection is increased, and if one tab fails or is in poor contact, the other tab can still provide stable current transmission, and normal operation of a circuit is ensured. The parallel arrangement of the positive electrode tab 111 and the negative electrode tab 121 can also reduce the resistance and voltage difference in the circuit and improve the stability and efficiency of current transmission.
According to some embodiments of the present utility model, the positive electrode tab 11 is formed with a first inclined edge 112 at one side in the length direction, and a guide gap 101 is formed between the first inclined edge 112 and the inner wall of the accommodating chamber; a second inclined edge 122 is formed on one side of the negative electrode pole piece 12 in the length direction, and a guide gap 101 is formed between the second inclined edge 122 and the inner wall of the pole piece accommodating cavity; wherein the first beveled edge 112 is beveled in the same direction as the second beveled edge 122.
In some embodiments, the positive electrode tab 11 and the negative electrode tab 12 are respectively formed with a first inclined edge 112 and a second inclined edge 122 on one side in the length direction, the first inclined edge 112 is inclined towards the inner wall far from the tab accommodating cavity in the direction close to the explosion-proof valve 14, the second inclined edge 122 is also inclined towards the inner wall far from the tab accommodating cavity in the direction close to the explosion-proof valve 14, a first guide gap 101 is formed between the first inclined edge 112 and the inner wall of the accommodating cavity, a second guide gap 101 is formed between the second edge and the inner wall of the accommodating cavity, the first guide gap 101 is communicated with the second guide gap 101, and since the inclined directions of the first inclined edge 112 and the second inclined edge 122 are the same, the positive electrode tab 11 or the negative electrode tab 12 cannot block at least part of the first guide gap 101 or the second guide gap 101, so that gas generated in the battery 1 can be converged into the guide gap 101 more quickly, the accumulated gas can burst the explosion-proof valve 14 more quickly, pressure release occurs, the severe degree of thermal runaway in the battery 1 is reduced, and safety and reliability in operation of the battery 1 are improved.
The battery pack according to the present utility model is briefly described as follows.
The battery pack according to the present utility model is provided with the battery 1 according to any one of the above embodiments, and since the battery pack according to the present utility model is provided with the battery 1 according to any one of the above embodiments, the inside of the battery 1 provided in the battery pack has a good exhaust space, and gas generated when thermal runaway occurs in the battery 1 can be immediately exhausted, and the gas is exhausted while taking away the surplus heat generated in the inside of the battery 1, thereby reducing the risk of explosion of the battery 1 and improving the safety and reliability of the battery pack during operation.
The power plant according to the utility model is briefly described below.
The power equipment according to the utility model is provided with the battery pack according to any one of the above embodiments, and the power equipment according to the utility model is good in safety and high in reliability because the power equipment according to the utility model is provided with the battery pack according to any one of the above embodiments.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery, comprising:
The pole piece accommodating cavity is formed in the shell, and an explosion-proof valve communicated with the pole piece accommodating cavity is formed on the shell;
The pole piece is accommodated in the pole piece accommodating cavity, and a guide gap is formed between at least part of the edge of the pole piece and the inner wall of the pole piece accommodating cavity, wherein the guide gap is formed between the edge of the pole piece and the inner wall of the pole piece accommodating cavity;
At least part of the edge of the pole piece is obliquely arranged towards the inner wall far from the pole piece accommodating cavity in the direction approaching the explosion-proof valve.
2. The battery according to claim 1, wherein the explosion-proof valve is provided at least one end of the housing in the length direction, and the guide gap is formed between at least one side edge of the pole piece in the height direction and the pole piece accommodating chamber inner wall.
3. The battery of claim 2, wherein the projection of the explosion proof valve and the guide gap at least partially overlap in the battery length direction.
4. The battery of claim 1, wherein the pole piece has a height H1 at one end and a height H2 at the other end, and wherein: (H1-H2)/H1 is less than or equal to 1/5.
5. The cell of claim 4, wherein H1-H2 is 6mm or less.
6. The battery according to claim 3, wherein the pole piece is configured as a plurality of stacked arrangement in a thickness direction.
7. The battery according to claim 6, wherein the plurality of pole pieces includes a positive pole piece and a negative pole piece, each positive pole piece is disposed between two adjacent negative pole pieces, one end of the positive pole piece in the length direction is provided with a positive pole tab, and the other end of the negative pole piece in the length direction is provided with a negative pole tab.
8. The battery according to claim 7, wherein a first inclined edge is formed at one side of the positive electrode tab in the length direction, the guide gap being formed between the first inclined edge and an inner wall of the tab receiving chamber; a second inclined edge is formed on one side of the negative pole piece in the length direction, and the guide gap is formed between the second inclined edge and the inner wall of the pole piece accommodating cavity; wherein the method comprises the steps of
The first inclined edge and the second inclined edge have the same inclination direction.
9. A battery pack comprising the battery of any one of claims 1-8.
10. A power plant comprising the battery pack of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479509.6U CN220821827U (en) | 2023-09-12 | 2023-09-12 | Battery, battery pack and power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479509.6U CN220821827U (en) | 2023-09-12 | 2023-09-12 | Battery, battery pack and power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821827U true CN220821827U (en) | 2024-04-19 |
Family
ID=90672477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322479509.6U Active CN220821827U (en) | 2023-09-12 | 2023-09-12 | Battery, battery pack and power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821827U (en) |
-
2023
- 2023-09-12 CN CN202322479509.6U patent/CN220821827U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11824223B2 (en) | Cylindrical sealed battery and battery pack | |
| EP3926753A1 (en) | Electrode assembly and battery cell | |
| KR101407772B1 (en) | Electorde assembly and secondary battery using the same | |
| EP2802025B1 (en) | Battery cell having stair-like structure | |
| JP5593451B2 (en) | Cap assembly having novel structure and cylindrical battery including the same | |
| CN211507809U (en) | Lithium ion battery, battery module and battery pack | |
| KR100814853B1 (en) | Battery module | |
| EP2418711B1 (en) | Secondary battery | |
| US11916249B2 (en) | Cover assembly of secondary battery and secondary battery | |
| CN115472997B (en) | Battery end cover assembly, energy storage device and electric equipment | |
| US11949128B2 (en) | Current collecting member, secondary battery and fabrication method | |
| KR101203332B1 (en) | Sealed battery | |
| KR101546545B1 (en) | Pouch type lithium secondary battery | |
| EP4109651A1 (en) | Battery, battery module, battery pack, and electric vehicle | |
| US9231270B2 (en) | Lithium-ion battery | |
| CN112117426B (en) | Single battery, power battery pack and vehicle | |
| CN220821827U (en) | Battery, battery pack and power equipment | |
| US20220352596A1 (en) | Battery cell, battery, electrical device and method for preparing battery cell | |
| CN116387638A (en) | Cylindrical battery and manufacturing method thereof | |
| CN216213732U (en) | Soft-packaged electrical core and battery pack | |
| JP4428796B2 (en) | Non-aqueous secondary battery | |
| KR100814882B1 (en) | Rechargeable battery and battery module formed by the rechargeable battery | |
| KR20220139619A (en) | Secondary battery and manufacturing method of the same | |
| KR102335696B1 (en) | The Current Interrupt Device And The Cap Assembly | |
| CN220510197U (en) | Battery and battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |